The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 1996
Filed:
Feb. 23, 1995
Chikashi Nakagawara, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kanagawa-ken, JP;
Abstract
A variable gain amplifying circuit is disclosed, which comprises a first transistor pair whose bases are connected to input terminals, a PN junction pair with bias currents that are collector currents of the first transistor pair, a second transistor pair with a common emitter that is a base input of a voltage difference of the PN junction pair, the common emitter having a current source, and a third transistor pair whose collectors are connected to corresponding emitters of the first transistor pair, whose bases are connected to the corresponding collectors, whose emitter are connected through a resistor, and whose emitters are connected to a current source for supplying bias currents, wherein outputs are obtained from the collector of the second transistor pair.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile